smallwood



A. SMALLWOOD.

APPARATUS FOR COOLING LIQUIDS.

APPLICATION FILED JAN.I9.1918.

1, 3 1 2,9 3 O Patented Aug. 12, 1919.

2 SHEETS-SHEET 1.

A l /e A. SMALLWOOD.

APPARATUS FOR COOLING LIQUIDS.

APPLICATION FILED JAN. 19; 1918.

l ,3 l 2, 930 Patented Aug. 12, 1919.

2 SHEETS-SHEET 2.

. riety ALFRED ,sM'ALLwoon, or

measure, mimosa ENGLAND.

AIPYARATUS FOR COOLING LIQUIDS.

1,312,930. 7 Application To all whom itmag concern Be it known that I, p I

a subject of the Kingdom of Great Britain, residing at 42 Hargrave Park, Highgate, London, N.; in the county of Middlcsex, England, metallurgist, have invented anew or Improved Apparatusfor Cooling Liquids, of which the following is a specification.

This invention comprises a new or improved plant or apparatus for cooling liquids by exposing them to air. One purpose or which the present invention may be utilized is the cooling of oil used in the hardening or other heat treatment of steel or other metal. The invention is not, however, restricted to this; it may be utilized for a vaof other purposes. y In order that this invention may be clearly understood and readily carried into practice, reference may be had to the appended explanatory two sheets of drawings, upon which a I Figure 1 illustrates in sectional elevation, one embodiment of the present invention.

Fig. 2 illustrates in sectional elevation Y a modified embodiment of the present inven- "to. form a well scroll is of conical In a convenient embodiment of the present invention, as illustrated in ig. 1, a vertical cylindrical metal casing a is. suitably installed either permanently or in a manner such that it is portable and may be readily displaced from one position to an-,

other. This cylinder is closed at the bottom or sump. short distance above the bottom an air inlet 6 is provi This air inlet may be in the nature of a broad shallow conduit pro ecting from the periphery of the cylinder c.

The cylinder a 18 furnished at the top,

with a hood 0 which has a lateral conduit' in which an exhauster, like is suitably installed. This exhauster, fan, pump or the like which is adapted to bedriven by any appropriate power is adapted to draw air upwardly within the cylinder at from the air ingress port Z).

Within the cylinder a. a series of elements are incorporated adapted to present an extended surface. These elements in the embodiment shown in Fig. 1 are designated 0, and they comprise lengths of sheet metal rolled to the form of a scroll with a narrow space between each turn. Each turn of the form. The maj or diameter of the outer turn of the scroll may coin- Specification of Letters Patent.

ALFRED- SMALLWOOD,

by the plate h so t a position a an, pump, or the cide with'the internal diameter der a. The minor diameter of the inner turn of the scroll may coincide with the external diameter of a central pipe or rod which is installed axially within the cylinder a. The lowermost scroll element 6 may be supported in any suitable manner, as for instance by an angle iron extending around the periphery of the interior of the casing.

A liquid ingress conduit 9 is provided which may enter the upper part of the cylinder a laterally, and'at a mid-point in said cylinder bend downwardly and adjoin the central member conduit 9 with the central member 7, a spraying device is incorporated. This may consist of a plate 71- which closes the extremity of the conduit g, and immediately above the said plate, holes i are provide in the conduit 9, through which the liquid passes laterally, the liquid being distributed that it is spread over the upper scroll member 6. The scroll members 6 01' certain of them may be inverted. An appropriate arrangement involves alternately inverted scroll members so that the liquid is adapted to take a substantially zig-zag course in its downward progress through the cylinder a. During this progress it is brought into intimate contact With the air flowing in'the opposite direction, and the cooled liquid which accumulates in the lower part of thecylinder a may egress by an opening or openings such as j,

In order to prevent liquid from being carried-away by the air, there may be provided in relation to the top of the chamber a, baffling provision. In the embodiment illust-rated, a series of layers or strips 1) of sheet metal are incorporated. These posed transversely to the chamber a, and arranged in successive layers, the intermediate layers being inclined in a direction opposed to that of the other layers. esired, the slats of intermediate layers may be disposedtransversely to those of the other layers. The said slats may any suitable manner, as for instanceupon ledges provided around the interior of the chamber a, or an upward extension thereof.

While in the embodiment shown in Fig. 1 the air is admitted laterally into of the cylinder a, in cylinders which are axially shorter, the air'may be admitted at a number of inlets distributed around the periphery of the cylinder a so that a better of the cylinf. At the juncture of the be supported in one side only Patented Aug. 12, 1919. filed January 19, 1915. Serial no. 212,745.

foo

ss f may be disair is adapted to enter sol distribution of the air is assured in the initial part of its upward course through the scroll members.

In the modified embodiment of the inven tion shown in Fig. 2, the air is adapted to flow transversely instead of longitudinally within the cylinder (8. A series of members 6 adapted to offer extended surfaces are appropriately installed in the cylinder (1 and a liquid supply spray h, i is incorporated at the top of the chamber a as in the previous embodiment. j is the outlet for the oil.

At the one side of the cylinder a a vertical air chamber or flue 7c is provided which the at any suitable point. Air ingress orifices Z1 W, k are provided at intervals in the length of the chamber 7v, said air ingress orifices admitting air to the interior of the cylinder a at positions between the members 6 On the opposite side of the are provided, located at intervals and at points located alternately in the length of the chamber a to the point at which the air ingress openings 70 70 and 7c are provided. The arrangement may be such that one member a each of the orifices Z, 10 Air entering at each of the air ingress openings in, k or la is thus enabled to flow upwardly and downwardly to the egress openings, respectively, Z, Z Z, Z and Z Z The egress openings Z, Z Z enter a vertical chamber or fiue m which is or the like by which the air is appropriately drawn through the apparatus. es, 0, 0 0 may be provided externally of the air egress openings; these serve to prevent the liquid from being carried away with the air. The bafiles may be so arranged as to cause the egress opening to face the direction of fiow of the air. Thus the bafiie 0' may cause the opening Z to face upwardly; the result of this is that liquid restrained by the battle 0 flows back into the chamber 6;.

battles 0 and 0 have the effect ofconverting the outlets Z and Z into outlets which face downwardly; the liquid restrained by these atfies 0 is enabled to gravitate into the which is in upon suitable ledges or supports. The strips or metal may be inclined in alternate directions in the successive members, but advantageously all of the strips may be disposed transversely to the direction of flow of the air across the interior of the chamber a What I claim as my invention and desire to secure by Letters Patent is 1. An apparatus for cooling liquids, comprising a chamber, means for conducting air into said chamb subjected to the cooling lnfiuence of air, and means for preventing egress of the liquid together with the air.

ALFRED SMALLWOOD. Witnesses ARTHUR HENRY BROWN,

WHEELER.

EDGAR NORTON 

